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34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
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From 2b3cf031dfcef6f4fc803ae451364c70482404a8 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?=
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<amadeusz.slawinski@tieto.com>
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Date: Thu, 14 Jul 2016 10:50:23 +0200
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Subject: [PATCH] Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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commit 23bc6ab0a0912146fd674a0becc758c3162baabc upstream.
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When we retrieve imtu value from userspace we should use 16 bit pointer
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cast instead of 32 as it's defined that way in headers. Fixes setsockopt
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calls on big-endian platforms.
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Signed-off-by: Amadeusz Sławiński <amadeusz.slawinski@tieto.com>
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Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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net/bluetooth/l2cap_sock.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/net/bluetooth/l2cap_sock.c
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+++ b/net/bluetooth/l2cap_sock.c
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@@ -817,7 +817,7 @@ static int l2cap_sock_setsockopt(struct
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break;
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}
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- if (get_user(opt, (u32 __user *) optval)) {
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+ if (get_user(opt, (u16 __user *) optval)) {
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err = -EFAULT;
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break;
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}
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